John Wood Power Vent 0.67 EF - Manual (Page 27)

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The self-diagnostic test has
detected that the water tem-
perature sensor is either open
or short circuited. 1. Turn the power off for 10-20 seconds then on again to clear this
error code.
2. If no wiring problems are found the control must be replaced.
The self-diagnostic test found
a problem with the Flammable
Vapour Wiring. 1. Check that all wiring is correct and that there are no open or short
circuits.
The control detected the pres-
ence of flammable vapours
near the appliance and
entered lockout. 1. Check for and remove any sources of flammable vapours.
2. Check the resistance of the FV sensor. If the resistance is more
than 100K ohms replace the sensor.
3. If the water heater is in operating condition replace the control.
The self-diagnostic test has
detected one of the tempera-
ture adjust buttons stuck
closed. 1. Make sure that there are no objects leaning against the front of the
control.
2. Lightly press and release each of the buttons once.
3. If the above actions do not clear the error, the control will continue
to regulate water temperature at the last setting, but you will not be
able to change settings unless you replace the control.
Error 12
Error 13
Error 14
Error 15
Error 7
The self-diagnostic test found
a problem with the gas valve
driver circuit. 1. Cycle power to the water heater “OFF” for 10 seconds and then
back “ON”.
2. If the above step did not clear the error, the control must be
replaced.
The self-diagnostic test has
detected a problem with the
internal microcomputer. 1. Cycle the external power “OFF” for 10 seconds and then back “ON”.
2. If the above step does not clear the error, the control must be
replaced.
The self-diagnostic test has
detected a problem with the
internal circuit. 1. Cycle the external power “OFF” for 10 seconds and then back “ON”.
2. If the above step does not clear the error, the control must be
replaced.
Flame signal sensed out of
proper sequence. 1. Insure flame sensor ceramic insulator is not cracked.
2. Turn power off for 10-20 seconds, and then on again to clear the
error code.
3. Replace the control.
Error 8
Error 9
Error 10
The high temperature thermal
cutoff is open. 1. Turn the power off for 10-20 seconds then on again to clear the
error code.
2. Replace the control.
Error 11
SYMPTOM POSSIBLE CAUSE(S) CORRECTIVE ACTION
Table 5 (cont’d) Intelli-Vent TM System Error Codes.