Rheem 55027500 Service Instructions Manual page 40

Evaporator Fan Motor (Procedure 10)
Personal Protective Equipment should be worn when conducting step 2 of
this procedure to reduce the risk of electric shock. Refer to Rheem Safety
Procedure on electrical testing.
The fan motor may commence operation without warning. Failure to isolate
the power may result in serious injury if the fan commences operation during
the removal process.
1. Isolate the power to the water heater.
2. Remove the access cover and confirm with a multi-meter between Active and
Neutral at the terminal block that voltage is not present.
3. Remove the refrigeration section jacket (Refer to Procedure 9)
4. Remove the electrical wiring terminal strip cover and disconnect the wiring to the fan
motor.
5. Remove the 2 screws retaining the fan shroud to the evaporator.
6. Slide the shroud up to disengage the locating tabs and lift clear.
7. Undo the nut retaining the fan blade to the motor shaft and remove the blade.
8. Undo the 3 nuts retaining the motor to the shroud and remove the motor.
9. Reassemble in reverse order of above.
De-ice Thermostat - 550 Series only (Procedure 11)
Personal Protective Equipment should be worn when conducting step 2 of
this procedure to reduce the risk of electric shock. Refer to Rheem Safety
Procedure on electrical testing.
1. Isolate the power to the water heater.
2. Remove the access cover and confirm with a multi-meter between Active and
Neutral at the terminal block that voltage is not present.
3. Remove the air inlet louver (Refer to Procedure 8)
4. Remove the electrical wiring terminal strip cover
and disconnect
thermostat.
5. Gently slide the de-ice thermostat sensing
capillary out of the evaporator.
6. Undo the 2 screws retaining the thermostat to the
support bracket and remove the thermostat.
7. Complete reassemble in reverse order of above
Bypass Solenoid – 550 Series Only (Procedure 12)
Personal Protective Equipment should be worn when conducting step 2 of
this procedure to reduce the risk of electric shock. Refer to Rheem Safety
Procedure on electrical testing.
1. Isolate the power to the water heater.
2. Remove the access cover and confirm with a multi-meter between Active and
Neutral at the terminal block that voltage is not present.
3. Remove the air inlet louver (Refer to Procedure 8)
4. Remove the electrical wiring terminal strip cover and disconnect the wiring to the by
pass solenoid from terminals 6 and N.
5. Undo the screw retaining the solenoid to the bypass valve and remove the solenoid.
6. Reassemble in reverse order of above.
TM017 Rheem Air Sourced Heat Pump Service Instructions REV: C
Date of Issue: 5/11/05
This document is stored and maintained electronically by
the wiring to the
Service. All printed copies not bearing this statement in RED are deemed "uncontrolled".
de-ice
When refitting the thermostat bulb it is important it be
positioned in the evaporator in the correct position
39