Troubleshooting - HeatStar GSP45 Instrucciones De Operación

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TROUBLESHOOTING

This troubleshooting guide has been designed to assist you in locating and correcting minor problems that may occur with
the GSP tube heater.
BLOWER DOES NOT COME ON
Possible Cause
Power cord is not plugged in
Thermostat setting is too low
DSI module needs to be reset
No power at electrical outlet
Faulty blower motor
IGNITER DOES NOT SPARK
Possible Cause
DSI module needs to be
reset
Faulty igniter or ignition
wire
Air switch does not oper-
ate
Igniter spark gap incorrect Reset spark gap to 1/8" (0.125 inches, 0.3175 cm).
BURNER DOES NOT LIGHT
Possible Cause
Air in the gas line
Improper gas inlet pres-
sure
Gas valve does not open
Low gas outlet pressure
BURNER DOES NOT STAY LIT
Possible Cause
Damaged wires between DSI module and electrode
Faulty DSI module
Damaged Electrode
Try This...
Plug power cord into a grounded three prong Outlet.
Increase thermostat temperature setting
Unplug heater power cord from the electrical Outlet: wait for a minimum of five seconds.
Plug heater cord back into outlet.
Replace fuse or reset circuit breaker
Replace blower motor
Try This...
Unplug heater power cord from the electrical outlet: wait for a minimum of five seconds. Plug
heater cord back into outlet
Unplug heater power cord from the electrical outlet; check igniter and ignition wire for dam-
age. If damaged, replace igniter and/or ignition cable.
Check flue/air supply duct for obstructions; remove obstructions as required. Check for loose/
leaky air hoses to the air switch; repair/replace/tighten hoses as required. Check for 24V
across the secondary terminals of the transformer.
IF NO: Check for 120V across the primary terminals 1 and 3 (black and white wires) of the
transformer. If 120V is present, replace transformer. If 120 is not present, check wiring
between power cord, blower motor and transformer.
IF YES: Connect a jumper wire across air switch terminals; if jumper wire allows blower to
operate, replace pressure switch (see replacement parts list for part number that applies to
your unit rating).
Try This...
Purge gas lines
Check gas inlet pressure at the 1/8" NPT plugged tap. Gas inlet pressure should be as follows:
Natural GAS: 5.0" w.c. (1.25 kPa) min; 11.0" W.C. (2.74 kPa) max
LP Gas: 11"w.c. (2.74 kPa) min; 13.0" (3.24 kPa) max
If gas inlet pressure does not meet inlet pressure requirements contact the gas company.
Check for 24V across valve terminals.
Check shutoff on valve
IF NO: check wiring between the ignition module and the valve. Repair/replace wires as
required. If wiring is OK, replace ignition module.
IF YES: Replace gas valve.
Check gas manifold pressure. Measure manifold pressure at the pressure tap on the gas valve.
Check gas manifold pressure. Measure manifold pressure at the pressure tap on the gas valve.
Natural Gas: 4.0" w.c. LP Gas 10.0" w.c. If manifold pressure does not meet requirements,
adjust valve outlet pressure with the adjustment screw on the valve. NOTE: Proper inlet gas
pressure must be verified before performing outlet pressure testing.
Gas-Fired Low-Intensity Infrared Heater
Try This...
Replace wires as required
Replace DSI module
Replace Electrode
18
Operating Instructions and Owner's Manual

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