|
| Replace ignition | No | |
|
| module. | ||
|
|
| ||
Turn up thermostat. |
| Place a jumper across |
| |
No | the thermostat terminals. No | |||
Does the fan turn on? | ||||
| Does the fan turn on? |
| ||
|
|
| ||
Yes
Check thermostat wiring and replace thermostat if necessary.
Yes
Is there power out
from pin 10 on
ignition module?
Yes
Is there power (230V)
at the burner?
No
Check relay wiring
(if applicable) and wiring
to the burner.
Yes
Remove electrical plug
from the pressure switch; place jumper between black & white leads. Does the fan turn on?
Yes
Replace pressure switch.
Remove obstruction.
Replace Fan.
Yes
Unplug burner.
No Does the fan turn freely?
No
Yes | Is the fan obstructed? |
No
Fan bearings may have failed. Replace fan.
16.1 Troubleshooting Flow Chart (Linear, Double Linear
Is there spark at the | Unplug burner and check | Is the igniter gap | |
No electrode and ignition wire. No | |||
set at 3 mm? | |||
igniter? | Are they damaged? | ||
| |||
| Yes | No | |
| Replace electrode and | Carefully reset gap | |
| ignition wire as needed. | to 3 mm. | |
|
| Replace automatic | |
|
| control unit. |
63 of 73
| Is the flue pipe or |
|
Yes | the inlet of the | Yes |
| burner obstructed? |
|
| No |
|
Are the hoses to the pressure No switch secure and leak free?
Yes
Remove electrical plug No from the pressure switch;
place jumper between black & white leads. Does the fan turn on?
Yes
Replace pressure switch.
Remove obstruction.
Repair, replace or
tighten hoses as necessary.
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SECTION 16: TROUBLESHOOTING
