EF3003, SF3003, DF3003
TROUBLESHOOTING GUIDE
HEATER
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| Service Manual |
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| Reference |
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| Heater is not |
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| Defective heater on/off switch |
| Replace heater on/off switch |
| Page 17 |
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| turning off |
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| Improper operation |
| See User’s Guide |
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| Loose wiring |
| Trace wiring in unit |
| Page 9 |
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| Heater is not |
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| Defective heater on/off switch |
| Replace heater on/off switch |
| Page 17 |
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| turning on |
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| Defective heater assembly |
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| Replace heater assembly |
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| Page 18 |
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| Improper operation |
| See User’s Guide |
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| Loose wiring |
| Trace wiring in unit |
| Page 9 |
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| Heater emits an |
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| Normal operation is when |
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| the heater emits an odour for |
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| odour |
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| a brief period after the |
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| Normal operation |
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| heater is initially turned on. |
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| The heater is burning off any |
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| dust accumulated during |
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| manufacturing or operation. |
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| Defective heater assembly |
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| Replace heater assembly |
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| Page 18 |
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| Loose wiring |
| Trace wiring in unit |
| Page 9 |
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| Heater fan turns on |
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| Improper operation |
| See User’s Guide |
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| but heater lacks |
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| Loose wiring |
| Trace wiring in unit |
| Page 5 |
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| heat |
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| Defective heater assembly |
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| Replace heater assembly |
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| Page 18 |
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| Normal operation |
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| Small glowing sections of |
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| the element are considered |
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| Heating element is |
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| normal. |
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| If larger glowing sections are |
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| glowing red |
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| Defective heater assembly |
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| causing the heater to trip the |
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| Page 18 |
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| thermal cut out, unplug unit, |
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| discontinue use and replace |
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| heater assembly |
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