TROUBLE SHOOTING (Continued)

PROBLEM

CAUSE

SOLUTION

 

1) Blower will not run.

 

 

A) “ON/OFF” control switch turned off.

Turn switch to the “ON” position.

 

B) Blower unplugged.

Plug blower back into 115 Vac. outlet.

 

C) No power at outlet.

Repair service to outlet.

 

D) Thermostat defective.

Replace thermostat.

 

E) Control harness defective.

Replace control harness.

 

F) High limit control circuit open.

Replace thermostat.

NOTENOUGH

G) Blower motor defective.

Replace Blower Assembly.

HOT WATER

Thermostat problems.

 

 

A) Thermostat set too low.

Turn temperature control higher.

 

B) Thermostat or ECO defective.

Replace thermostat.

 

Others

 

 

A) Heater undersized.

Reduce hot water use.

 

B) Low gas pressure.

Contact dealer.

 

C) Incoming water is unusually cold.

Allow more time for heater to reheat.

 

D) Leaking hot water pipes or fixtures.

Have plumber check and repair leaks.

 

A) Defective air flow restrictor.

Take unit out of service immediately, call the

 

 

manufacturer’s representative.

 

B) Not enough dilution air to mix with

Proper dilution air must be provided for

VENT PIPE TOO HOT

flue gases.

combustion and dilution of flue temp.

(ABOVE 170°F)

 

Refer to “INSTALLATION” section.

 

C) Dilution air too hot for mixing with

Supply air is too hot. Check for heat sources

 

flue gases.

around and/or blockage of dilution air intake.

 

D) Wrong burner orifice.

Install correct orifice.

 

A) Dirt in burner ports

Turn off heater and gas, clean burner head.

 

B) Combustion air path restricted.

Check dilution air intake, exhaust venting, and

YELLOW FLAME

 

air openings in bottom base pan for

 

 

obstructions or blockage.

 

C) Not enough dilution air for proper

Check dilution air intake for obstructions

 

combustion.

or blockage.

 

A) Water on the floor under heater.

See “CONDENSATION” section.

 

B) Water dripping from blower assembly.

Install condensate drain hose (supplied locally)

CONDENSATION

 

on drain port of rubber boot of blower assembly

 

 

or provide a drip “TEE” in the vent pipe to catch

 

 

the condensation. See figure 1 and the

 

 

Installation of Vent System instructions.

 

Improperly sealed, hot or cold supply

Tighten threaded connections.

 

connections, relief valve, drain valve

 

WATER LEAKS

or thermostat threads.

 

 

Leakage from other appliances or water

Inspect other appliances near water heater.

 

water lines.

 

 

Condensation of flue products.

Refer to “CONDENSATION” section.

 

Thermal expansion in closed water

Install thermal expansion tank (DO NOT plug

LEAKING T&P

system.

T&P valve).

 

Improperly seated valve.

Check relief valve for proper operation

 

 

(DO NOT plug T&P valve).

HOT WATER ODORS

High sulfate or mineral content in

Drain and flush heater thoroughly then refill.

(Refer to CATHODIC

water supply.

 

PROTECTION

Bacteria in water supply.

Chlorinate water supply.

WATER TOO HOT

Thermostat set too high.

Refer to HIGH TEMPERATURE REGULATION.

WATER HEATER SOUNDS

Condensation dripping on burner.

Refer to CONDENSATION above.

SIZZLING-RUMBLING

Sediment at bottom of heater tank.

Clean sediment from tank. Refer to DRAINING

 

 

instruction in Maintenance section of manual.

SOOTING

Improper combustion.

Refer to AIR REQUIREMENTS on page 4.

HEATER LIGHTS

Outlet polarity is reversed.

Test polarity and correct.

BUT GOES OUT

 

 

IN 4-5 SECONDS

 

 

 

 

 

18

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Image 18
A.O. Smith GPCR, GPSH owner manual HOT Water, Vent Pipe TOO HOT, Yellow Flame, Protection, Sizzling-Rumbling, Sooting

GPCR, GPSH specifications

A.O. Smith has long been a leader in the water heating industry, known for its innovation and commitment to quality. Among its standout products are the GPSH and GPCR series, which exemplify advanced technology and efficiency in water heating solutions.

The GPSH, or Gas Powered Storage Heater, is engineered to optimize energy usage while providing a continuous supply of hot water. This model features advanced thermostatic control, ensuring precise temperature management to meet user needs. Additionally, the GPSH boasts an impressive insulation system, reducing heat loss and resulting in improved energy efficiency. The inclusion of a high-efficiency gas burner allows for faster recovery times, meaning users can enjoy hot water on demand without extended wait times.

On the other hand, the GPCR, or Gas Powered Condensing Revolving Unit, is designed for commercial applications where high demand and energy efficiency are paramount. One of its main features is the condensing technology that recycles flue gases to enhance energy recovery. This leads to significant savings on energy bills and reduced environmental impact. The GPCR's advanced monitoring system provides real-time data on performance and efficiency, allowing for proactive maintenance and management.

Both models come equipped with A.O. Smith's proprietary safety features, including flame rollout switches and temperature and pressure relief valves, ensuring peace of mind for users. Their durable construction employs high-quality materials designed to withstand extreme operating conditions, further promoting longevity.

Installation and maintenance of both the GPSH and GPCR are straightforward, with user-friendly designs that simplify routine checks and servicing tasks. The compact nature of these units means they can fit into a variety of spaces, making them versatile options for both residential and commercial settings.

In summary, A.O. Smith's GPSH and GPCR series represent the pinnacle of water heating technology, combining efficiency, safety, and durability. With a focus on meeting the evolving demands of customers, these products are a reliable choice for anyone seeking effective solutions for their hot water needs. As the industry evolves, A.O. Smith continues to lead the way with its innovative designs and commitment to quality, ensuring users have access to the best water heating solutions available on the market.