Modine HD Série Manuel D'utilisation page 3

TROuBLESHOOTINg INfORmATION
general
There are a few troubleshooting items that you may perform.
They are listed below. All other troubleshooting MUST BE
PERFORMED BY A QUALIFIED INSTALLATION AND
SERVICE AGENCY.
If the heater does not light .....
1. Make sure the thermostat is set above room temperature.
2. Make sure there is power to the heater (check the circuit
breaker).
3. Make sure the main gas supply is on (check the manual
shut-off valve outside the unit and make sure it is in the
open position - see Figure 1).
4. If none of the above solve the problem, contact a qualified
installation and service agency.
Air feels cold coming out of the heater .....
1. Make sure the burner lit. If it didn't, refer to "If heater does
not light" above.
2. If the room WAS cold, it will take a while for the air coming
out of the heater to feel warm.
3. If the air coming out of the heater continues to feel cold
after 5 minutes and the room is not warming up, contact a
qualified installation and service agency.
figure 1
Recommended Piping to Controls
GAS
SUPPLY LINE
GAS
SUPPLY LINE
3"
MIN.
SEDIMENT
TRAP
• Manual shut-off valve is in "off" position when perpendicular to pipe.
IMPORTANT
All installation and service of these
units MUST be performed by a qualified
installation and service agency.
GROUND
JOINT
UNION
W/ BRASS
SEAT
MANUAL GAS
SHUT-OFF VALVE
TO
CONTROLS
PLUGGED
1/8" NPT TEST
GAGE CONNECTION
mAINTENANCE
It is recommended that a qualified installation and
service agency inspect the heater and vent system
prior to each heating season.
There are no components behind the service access door that
are serviceable by the homeowner, however, there are a few
checks that you can do:
(REmEmBER TO ALWAYS TuRN Off THE POWER AND
SET THERmOSTAT TO THE LOWEST SETTINg BEfORE
PERfORmINg ANY mAINTENANCE TO THE HEATER)
1. Periodically dust and clean the heater.
2. Periodically remove the dust from the fan blades.
3. Remove the deflector blades and vacuum inside the heat
exchanger area.
4. The motors on the heater (power exhaust and fan) do
NOT require oiling. They are permanently lubricated at the
factory. DO NOT attempt to oil the motors.
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