Service Spark Plugs - Rheem GEN20AD-E Operator's Manual

Service Spark Plugs

Changing the spark plugs will help your engine to start easier
and run better.
1. Clean area around spark plugs.
2. Remove and inspect spark plugs.
3. Check electrode gap with wire feeler gauge and reset
spark plug gap to recommended gap if necessary (see
Specifications).
4. Replace spark plugs if electrodes are pitted, burned or
porcelain is cracked. Use the recommended replacement
spark plugs. See Specifications.
5. Install spark plugs and tighten to 180 in/lbs (20Nm).
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When Calling for Assistance
You must have the following information at hand if it is
necessary to contact a local service center regarding
service or repair of this unit:
1. Obtain the unit Model Number and Serial Number from
the unit ID label. See Controls for location of the label
or refer to the information recorded on the inside from
cover of the installation manual.
2. Obtain the engine identification numbers from the engine
label. See the operator's manual for location of this
information.
Storage
The home generator system is designed for long term service
as a backup generator. There is no need to take any storage
precautions. However, if it becomes necessary to take the
system out of service for an extended period, call Technical
Services at 877-369-9400, between 8:00 AM and 5:00 PM CT
for specific recommendations.