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INSSFECMI0914

ConTroL CArD AuToDiAgnosTiC

The control card of the furnace is equipped with a pilot LED that allow easy and quick diagnostic of its essential functions. The yellow LED is 

located at the top right side of the control panel (item #10 of the control panel picture).
The pilot LED will start to blink continuously when an electrical problem occurs.

N.B. If you do not solve the problem after checking these points, cut off the power supply at the main electrical panel and contact 

our customer service (see the “Limited warranty” section to obtain the phone numbers).

troubleshooting

  pRoBlem

      defeCTive paRT oR paRT To CheCk

The unit does not work

- Defective thermostat, wrong thermostat setting or positionning
- open circuit breaker or fuse
- Faulty connections
- Faulty motor or condensator
- Faulty blower control switch
- Faulty transformator
- See above: CONTROL CARD AUTODIAgNOSTIC

The unit runs continuously

- Defective thermostat, wrong thermostat setting or positionning
- Heat losses greater than the unit capacity
- Faulty relay
- Thermostat wire incorrectly connected to the furnace
- See above: CONTROL CARD AUTODIAgNOSTIC

The unit cycles under control of the thermal protection (overheat 

indicator)

- Blocked air vents
- Defective motor

overheating

- Defective thermostat, wrong thermostat setting or positionning

- Defective motor

The breaker trips when the heater is turned on

- Faulty connections

- Voltage higher than that indicated on the nameplate

Elements are on, but the motor does not work

- Defective motor or condensator

- Faulty relay

The desired room temperature cannot be reached

- one or more defective elements
- Defective thermostat or wrong thermostat setting
- Voltage lower than that indicated on the nameplate
- Heat losses greater than the unit capacity
- Faulty relay

Summary of Contents for SFECM series

Page 1: ...urther information or to consult this guide online please visit our website at www stelpro com This unit complies with the CSA and UL standards This unit is approved according to the Canadian and Amer...

Page 2: ...burns do not let bare skin touch hot surfaces Let the unit cool down for a few minutes before handling it it stays warm for some time after shut down Never block air vents This obstruction could lead...

Page 3: ...ocated as centrally as possible in the area to heat in order to optimize air dissipation in all the rooms Clearance This furnace is approved for zero inch clearance Meaning that you can install it dir...

Page 4: ...with a plenum temperature sensor You can select the plenum temperature set point with a potentiometer installed on the control card The default factory set point is 45 C 113 F You can select the set p...

Page 5: ...C power source For 240V power supply either copper or aluminum wires can be used except for 27 5 and 30kW models where only copper wire can be used see the power connection illustration below If you w...

Page 6: ...close or in front of an air outlet close to concealed ducts or a chimney and in a location with poor air flow e g behind a door or with frequent air draft conditions e g head of stairs Seal the wall o...

Page 7: ...e sequence continues as follows the blower switches to the medium speed and all the furnace elements are activated one by one 100 heating The plenum temperature is still limited by the potentiometer o...

Page 8: ...heating option is activated by the user the furnace will deactivate it when the heating season ends more than two hours without any heating demand Moreover it will reactivate it when a new heating se...

Page 9: ...indicate which installation has been programmed The heat pump can operate all year and allows the user to make energy savings due to the plenum temperature regulation function exclusive to Stelpro Thi...

Page 10: ...ating power will ramp up to 50 heating for five 5 minutes If a heating demand lasts 30 minutes a second sequence of five 5 minutes activates a ramp up of the elements to 100 heating at medium speed He...

Page 11: ...700 350 850 600 2 366 766 530 1030 742 3 433 833 710 1210 884 4 500 900 900 1400 1025 5 566 966 1080 1450 1167 6 633 1033 1260 1450 1309 7 700 1100 1450 1450 1450 RECOMMAND RECOMMENDED TABLEAU D AJUST...

Page 12: ...1966 7 1200 2000 2200 2200 2200 RECOMMAND RECOMMENDED When the furnace has run at full capacity for 10 minutes block the supply and return air openings and measure the supply air temperature at a poi...

Page 13: ...specify the model of your furnace as well as its serial number Air filter Excessive dust or dirt accumulation can block the airflow forcing the unit to work harder to maintain the desired temperature...

Page 14: ...condensator Faulty blower control switch Faulty transformator See above control card autodiagnostic The unit runs continuously Defective thermostat wrong thermostat setting or positionning Heat losses...

Page 15: ...Y SFE 5KW 240V 1PH 11 LONG 1 ELF SFE0521 2 ELEMENT ASSEMBLY SFE 5KW 240V 1PH 14 LONG 2 BLO 004 SQUIRREL CAGE BLOWER 10 8 2 BLO 005 SQUIRREL CAGE BLOWER 12 11 3 MO 034 ECM MOTOR 1 2HP 3 MO 035 ECM MOTO...

Page 16: ...r property or personal injury damages penalties special or punitive damages damages for lost profits loss of use of equipment cost of capital cost of substitute products facilities or services shutdow...

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