Heat Controller HTS SERIES Functional Troubleshooting, Fault Htg Clg Possible Cause Solution

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T h e Q u a l i t y L e a d e r i n C o n d i t i o n i n g A i r

R e s i d e n t i a l S p l i t - 6 0 H z R 4 1 0 A

R e v. : 0 3 A u g u s t , 2 0 1 2

Functional Troubleshooting

Fault

Htg

Clg

Possible Cause

Solution

 

 

 

 

 

 

 

 

 

 

 

Check Line Voltage circuit breaker and disconnect

Main Power Problems

X

X

Green status LED off

Check for line voltage between L1 and L2 on the contactor

Check for 24VAC between R and C on DXM

 

 

 

 

 

 

 

 

 

 

 

Check primary/secondary voltage on transformer

 

 

X

Reduced or no water flow

Check pump operation or valve operation/setting

 

 

 

in cooling

Check water flow adjust to proper flow rate

 

 

 

 

 

 

 

 

X

Water t emperature out of range in

Bring water temp within design parameters

 

 

 

 

 

 

cooling

 

 

 

 

 

 

Check for dirty air filter and clean or replace

HP Fault Code 2

X

 

Reduced or no air flow

Check fan motor operation and airflow restrictions

High Pressure

 

in heating

Dirty air coil- construction dust etc.

 

 

 

 

 

 

 

Too high of external static. Check static vs blower table

 

X

 

Air t emperature out of range in

Bring return air temp within design parameters

 

 

heating

 

 

 

 

 

 

 

 

 

 

 

X

X

Overcharged with refrigerant

Check superheat/subcooling vs typical operating condition

 

table

 

 

 

 

 

 

 

 

 

 

 

 

X

X

Bad HP switch

Check switch continuity and operation - Replace

 

 

 

 

 

 

X

 

Frozen water heat exchanger

Thaw heat exchanger

 

X

X

Bad HPWS Switch

Replace HPWS Switch

 

 

 

 

 

LP/LOC Fault-Code 3

X

X

Insufficient charge

 

Check for refrigerant leaks

 

 

Compressor pump down at start-

Check charge and start-up water flow

Low Pressure/Loss of Charge

X

 

 

up

 

 

 

 

 

 

 

 

 

 

 

 

 

Reduced or no water flow

Check pump operation or water valve operation/setting

 

X

 

Plugged strainer or filter - clean or replace

 

 

in heating

LT1 Fault - Code 4

 

 

Check water flow adjust to proper flow rate

 

 

 

 

 

 

 

 

 

Water Low Temperature

X

 

Inadequate anti-freeze level

Check antifreeze density with hydrometer

 

 

 

 

 

 

X

 

Improper low temperature setting

Clip LT1 jumper for antifreeze (10°F) use

 

 

 

(30°F vs 10°F)

 

 

 

X

 

Water t emperature out of range

 

Bring water temp within design parameters

 

X

X

Bad thermistor

Check temp and impedance correlation per chart

 

 

 

Reduced or no air flow

Check for dirty air filter and clean or replace

 

 

X

Check fan motor operation and airflow restrictions

 

 

in cooling

 

 

 

Too high of external static - check static vs blower table

 

 

 

 

 

LT2 Fault - Code 5

 

X

Air temperature out of range

Too much cold vent air - bring entering air temp within

 

design parameters

Low Air Temperature

 

 

 

 

 

 

 

 

 

 

X

Improper low temperature setting

Normal airside applications will require 30°F only

 

 

 

 

 

(30°F vs 10°F)

 

 

 

X

X

Bad thermistor

Check temp and impedance correlation per chart

 

X

X

Blocked drain

Check for blockage and clean drain

 

X

X

Improper trap

 

Check trap dimensions and location ahead of vent

 

 

 

 

 

Check for piping slope away from unit

Condensate Fault-Code 6

 

X

Poor drainage

Check slope of unit toward outlet

 

 

 

 

Poor venting - check vent location

High Condensate Level

 

X

Moisture on sensor

 

Check for moisture shorting to air coil

 

X

X

Plugged air filter

Replace air filter

 

X

X

Restricted return air flow

Find and eliminate rectriction - increase return duct

 

and/or grille size

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check power supply and 24VAC voltage before and during

 

 

 

 

 

operation

 

X

X

Under voltage

Check power supply wire size

Over/Under Voltage-Code 7

Check compressor starting. Need hard start kit?

 

 

 

 

 

 

 

 

Check 24VAC and unit transformer tap for correct power

(Auto Resetting)

 

 

 

 

 

 

 

 

supply voltage

 

 

 

 

 

 

 

 

 

 

Check power supply voltage and 24VAC before and during

 

X

X

Over voltage

operation.

 

Check 24VAC and unit transformer tap for correct power

 

 

 

 

 

 

 

 

 

 

supply voltage

Unit Performance

X

 

Heating Mode LT2>125°F

Check for poor air flow or overcharged unit

 

 

 

 

 

Sentinel-Code 8

 

X

Cooling Mode LT1>125°F OR

Check for poor water flow, or air flow

 

 

LT2< 40°F

 

 

 

 

 

 

 

 

 

 

Swapped Thermistor

X

X

LT1 and LT2 swapped

Reverse position of thermistors

Code 9

 

 

 

 

 

 

 

 

 

 

 

X

X

Blower does not operate

Check blower line voltage

 

 

 

 

 

Check blower low voltage wiring

 

 

 

 

 

ECM Fault - Code 10

 

 

Blower operating with incorrect

Wrong unit size selection

 

 

 

airflow

 

 

 

 

Wrong unit family selection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wrong motor size

 

 

 

 

 

 

 

 

 

 

 

Incorrect blower selection

 

 

 

 

 

 

www.heatcontroller.com

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Contents GeoLogix HTS Series Split System Two Stage, 2-5 Tons Table of Contents Model Nomenclature for Indoor Split Series Safety SafetyGeneral Information WDG/MWG Indoor Section Matches for Ahri Ratings Equipment SelectionGeneral Indoor Coil Selection HTS GeoLogixSelecting Air Handler Air Handler Selection ExampleIndoor Compressor Section Location InstallationRemoving Existing Condensing Unit Where Applicable Air Handler and Coil InstallationPiping Installation HTS InstallationGround-Loop Heat Pump Applications Flushing the Earth LoopAntifreeze Ethanol Approximate Fluid Volume U.S. gal. L per 100’ of PipeAntifreeze Percentages by Volume 100% USP food grade Propylene GlycolWater Quality Standards Expansion Tank and PumpMotorized Modulating Water Control Valve Open Ground-Water Heat Pump Applications026-049 Sizes 064 ClosedWater Quality Standards Water Quality StandardsLine Set Installation Refrigeration InstallationInstalling the Indoor Coil and Lineset Add-On Heat Pump ApplicationsEvacuation and Charging the Unit WDG Evacuation Of The Lineset And Coil Charging The SystemTotal Charge Method Determining Sub-Cooling Checking Superheat and Subcooling Determining SuperheatHot Water Generator Typical HWG Installation Indoor Compressor SectionWater Tank Preparation InstallationHWG Water Piping Sizes and Length HWG Water PipingWater Tank Refill Initial Start-UpGeoMax 2 HTS Electrical Data Electrical Line VoltageTerminal Strip Low Water Temperature Cutout SelectionAccessory Connections Electrical Low VoltageElectrical Thermostat Wiring Thermostat InstallationThermostat Connections Unit Operation DXM2 ControlsDXM2 Layout and Connections Indoor Split HTS024-060 Wiring Diagram 208-230-/60/1 DXM2 Commissioning Conditions Unit Commissioning And Operating ConditionsOperating Limits Building Operating LimitsUnit Start-up Procedure Unit Start-Up and Operating ConditionsUnit and System Checkout Manual Operation Unit Start-Up ProcedureGPM Unit Operating ConditionsTon Preventive Maintenance Sensor Nominal resistance at various temperatures Basic Troubleshooting InformationSystem Configuration Advanced Troubleshooting and Configuration InformationService Mode Start DXM2 Process Flow ChartFault Htg Clg Possible Cause Solution Functional TroubleshootingIFC Fault Code Symptom Htg Clg Possible Cause Solution Performance Troubleshooting\SH Troubleshooting FormS i d e n t i a l S p l i t 6 0 H z R 4 1 0 a Wellworth Ave., Jackson, Michigan 49203 Ph -0787-2100 Fax

HTS SERIES specifications

The Heat Controller HTS Series is a cutting-edge solution for climate control, designed to offer superior performance and unmatched comfort. This advanced heating and cooling system stands out in today's market due to its innovative technologies and user-friendly features.

One of the main features of the HTS Series is its energy efficiency. Equipped with the latest inverter technology, it adjusts the compressor speed to maintain the desired temperature while consuming less energy. This not only reduces operational costs but also minimizes the carbon footprint, making it an environmentally friendly choice.

Another standout characteristic of the HTS Series is its precise temperature control. The system utilizes advanced sensors to monitor indoor conditions in real-time, ensuring that you experience consistent comfort throughout your space. The ability to quickly react to changes in temperature helps maintain an optimal environment, regardless of external weather fluctuations.

The HTS Series also boasts a robust air filtration system. With multiple filter layers, including HEPA filters, it effectively captures dust, allergens, and other airborne pollutants. This feature makes the HTS Series an excellent choice for families with allergies or respiratory concerns, promoting a healthier indoor atmosphere.

Furthermore, the heat pump technology incorporated in the HTS Series allows for both heating and cooling capabilities. In cooler months, it efficiently extracts heat from the outside air to warm your living spaces, while during the summer, it reverses the process to provide refreshing cool air. This dual functionality enhances versatility, making it suitable for various climates.

User convenience is paramount in the HTS Series design. It comes with a smart thermostat that enables remote operation via a mobile app, providing users with flexible control over their environment. Additionally, the intuitive interface and programmable settings allow for seamless customization, adapting to your daily schedule and preferences.

Durability and quiet operation are also key attributes of the HTS Series. Built with high-quality materials and components, it ensures long-lasting performance, while its sound-dampening technologies provide whisper-quiet operation, enhancing the comfort of your home or office space.

In summary, the Heat Controller HTS Series represents the pinnacle of home heating and cooling technology. With its energy efficiency, precise temperature control, superior air filtration, dual functionality, and user-friendly features, it stands as a leading choice for those seeking reliable and effective climate solutions. This series not only enhances comfort but also supports a sustainable lifestyle for the future.
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