Maytag HRV-150, HRV-210, ERV-210, ERV-150 manual Troubleshooting, Start-up troubleshooting

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13.0Troubleshooting

NOTE: Inspect the unit before proceeding with these steps.

Start-up troubleshooting:

Problems	Possible causes	You should try this

1. Unit does not work.	• The circuit board may
	be defective.

B

G

		VE0082
		• Unplug the unit. Disconnect the main control
		and the optional(s) control(s) (if need be). Jump
		B and G terminals. Plug the unit. If the motor
		runs on high speed and the damper opens, the
		circuit board is not defective.

2. The damper actuator	• The 9-pin connector may	• Unplug the unit and check to make sure all the
does not work.	have a loose connection.	crimp connections are secured. Check the damper
		actuator connections as well.
	• The damper actuator may	• Feed 120 V directly to the damper actuator. If the
	be defective.	problem persists, replace the damper actuator.
	• The circuit board may	• Replace the circuit board if the problem is not
	be defective.	solved by the above.

3. The wall control does	• TBI mode is activated.	• If the outside temperature is below -15°C (5°F)
not work OR		and the unit has an enthalpic recovery core
the indicators flashes		(energy recovery core), then the TBI mode is
every 8 seconds.		probably activated. (See Section 7.5.)
	• The wires may be in	• Ensure that the color coded wires have been
	reverse position.	connected to their appropriate places.
	• Erratic operation of the	• Unplug the unit. Wait 30 seconds. Plug it back in.
	control every 8 seconds.
	• The wires may be broken.	• Inspect every wire and replace any that are damaged.
	• There may be a short-circuit. • With the help of a multimeter, check for continuity.

•The wire in the wall OR the wall control may be defective.

•Remove the wall control and test it right beside the unit using another shorter wirer. If the wall control works there, change the wire. If it does not, change the wall control.

•The circuit board may be defective.

•If the second wall control does not solve the problem, then replace the circuit board.

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Contents Installer Manual Ventilation SystemsTable of Contents About this Manual Nstallation of the C OntrolsService To Order Parts Contact your local distributor Sizing High speedHRV Technical Data ERV-210Model Number ERV-150 Model Number HRV-150 Model numbers ERV-150, HRV-150 ERV-210, HRV-210 Typical Installation Fully Ducted SystemInstallation Inspect the Contents of the BOXInstallation cont’d Planning of the DuctworkCalculating the Duct Size Installing the Ductwork and Registers Calculating the Duct Size CONT’DInstalling the Ductwork and Registers cont’d Method 1 return-supply Method 2 return-returnRigid duct Connecting Ducts to the UnitInsulated flexible duct Do not use screws to connect rigid ducts to the portsExhaust Hood Installing the Exterior HoodsConnecting the Drain 152 mm Intake Hood 18 457 mm Optional ductControl Devices Optional ControlAll models require a main control Characteristics of cold weather TBI mode Other FeaturesSpecial Cold Weather TBI Mode for Ervs Main and Optional Controls Available for Your UnitInstallation of the Main Control Installation of the ControlsDimensions and Specifications Main Controls Never install more than one main control per unitInstallation of the Main Control cont’d Electrical Connection to Optional Controls Electrical Connection to the FurnaceWiring DiagramIf you are using Flow Collars If you are using Flow Measuring StationsAir Flow Balancing Balancing Procedure 11.0 Overall Verification Main ControlsMaintenance / Instructions for User Do not oil the motor. It is already permanently lubricatedTroubleshooting Start-up troubleshootingLight does not stay on Warranty References