Troubleshooting - Rheem GEN20AD-E Operator's Manual

Troubleshooting

Problem
Eng ine is running, but no AC output is available.
Eng ine runs well at no-load but "bogs down"
when loads are connected.
Eng ine will not start; or starts and runs rough.
Engine shuts down during operation.
Loss of power on circuits.
Unit will not exercise.
Excessive Vibration
Odor of fuel
Utility power returns, unit does not stop
Cause
1. Circuit breaker open or defective.
2. Service code in generator control board.
3. Poor wiring connections or defective
transfer switch.
1. Generator is overloaded.
2. Short circuit in a connected load.
3. Shorted generator circuit.
4. Fuel pressure or mixture is incorrect.
5. Kinked fuel line between regulator and
engine.
6. Electronic Governor system not operating
properly.
1. 15 Amp fuse missing or blown.
2. Electronic Governor not working properly.
3. Fuel supply turned off or depleted.
4. Incorrect fuel selection.
5. Failed battery.
6. Clogged air filter.
1. Fuel supply turned off or depleted.
2. 2. 2 Control board digital display shows a display shows a splay show
serv service code code. ser
1. 1. 1. Generat Generator circuit breaker is open. Generat rcuit breaker is rcuit breaker is
2. 2. Transfer switch problems. Tra r switch proble r switch proble
1. 1. Control board not set to AUTO. ntrol board no ntrol boa
2. Exercise tim Exercise tim Exercise timer not set or set to OFF.
3. 3. 3. Unit da Unit da Unit date and time not set.
4. Fa Fa Failed battery.
5. 15 Amp fuse missing or blown.
1. Loose mechanical fastener.
1. Fuel leak.
1. Blown fuses in transfer switch.
2. 5 minute minimum runtime not lapsed.
3. Poor wire connection or defective
controllers.
1. Reset or replace circuit breaker.
2. Contact local service facility.
3. Check and repair or contact local service
facility.
1. Remove one or more loads.
2. Disconnect shorted electrical load.
3. Contact local service facility.
4. See Gaseous Fuel System in the installation
manual.
5. Remove kink. Replace if necessary.
6. Contact local service facility.
1. Install (new) 15 Amp fuse. See System
Control Board
2. Contact local service facility.
3. Open fuel v Open fuel valve(s); check propane tank. pen fuel v
4. Check fu Check fuel Check fuel selector switch and set to proper
setting setting. tin
5. 5. Replace battery. Re
6. 6 6. Clean or replace air filter.
1. Check fuel valves, fill propane tank.
eted. d
2. Refer to Service code Detection System.
1. Reset circuit breaker.
2. See transfer switch manual.
1. Press AUTO button on control board.
2. Set exercise timer.
3. Set unit date and time.
4. Replace battery.
5. Install (new) 15 Amp fuse. See System
Control Board.
1. Check and repair or contact local service
facility.
1. Turn off manual shutoff fuel valve. Contact
local service facility.
1. Install (new) fuses.
2. Wait 5 minutes.
3. Check, repair or contact local service facility.
Correction
29