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CGTH INSTALLATION, OPERATION AND SERVICE MANUAL
36
SECTION 9: TROUBLESHOOTING
9.1 General
This troubleshooting guide has been designed to assist you in locating and correcting minor problems that
may occur with the CGTH-Series heater.
Installation Code and Annual Inspections: All installations and service of ROBERTS GORDON
®
products
must be performed by a contractor qualified in the installation and service of gas-fired heating equipment
and conform to all requirements set forth in the ROBERTS GORDON
®
manuals and all applicable
governmental authorities pertaining to the installation, service and operation of the equipment.
To help facilitate optimum performance and safety, Roberts-Gordon recommends that a qualified contractor annually
inspect your ROBERTS GORDON
®
products and perform service where necessary, using only ROBERTS GORDON
®
replacement parts
BLOWER DOES NOT COME ON
Possible Cause Try this....
Power cord is not plugged in. Plug power cord into a grounded three prong outlet.
Thermostat setting is too low. Increase thermostat temperature setting.
DSI module needs to be reset. Unplug heater power cord from the electrical outlet; wait for a minimum of
five seconds. Plug heater cord back into outlet.
No power at electrical outlet. Replace fuse or reset circuit breaker.
Faulty thermostat wiring or Install jumper wire across THERMOSTAT
faulty thermostat. CONNECTION wires on the rear of the burner. If blower starts,
remove jumper wire and proceed as follows:
Check wiring between thermostat and heater. If wiring is OK, then,
replace thermostat.
IGNITER DOES NOT SPARK
Possible Cause Try this....
DSI module needs to be reset. Unplug heater power cord from the electrical outlet; wait for a minimum of
five seconds. Plug heater cord back into outlet.
Faulty igniter or ignition wire. Unplug heater power cord from the electrical outlet; check igniter and
ignition wire for damage. If damaged, replace igniter and/or ignition cable .