Install Manual
Table Of Contents
Troubleshooting
44 Installation Guidelines for 60 Hz Air-Cooled Generators
No transfer to 
standby after 
utility source 
failure
MLCB (generator disconnect) is OFF (OPEN). Reset generator disconnect to ON (CLOSED).
Faulty transfer switch coil.
Contact an IASD for assistance
Faulty transfer relay.
Transfer relay circuit open.
Faulty control logic board.
Engine may be warming up. See Cold Smart 
Start.
Check controller screen to verify status.
Unit consumes 
large amounts of 
oil
Excessive engine oil. Adjust oil to correct level.
Faulty engine breather. Contact an IASD for assistance.
Incorrect type or viscosity of oil.
See Engine Oil Requirements in owner’s 
manual.
Damaged gasket, seal, or hose. Inspect for oil leaks.
Restricted air filter. Replace air filter.
Wi-Fi network 
connection 
broken or 
intermittent
Various. See Wi-Fi module owner’s manual.
* Contact an IASD or visit www.generac.com for assistance.
Problem Cause Correction










