John Wood Power Direct Vent (Non-ENERGY STAR qualified models) - Manual (Page 25)

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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 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 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 4 (cont’d) Intelli-Vent TM System Error Codes.
Error 4
Error 5
Error 6
The pressure switch remained
open longer than 5 seconds
after the combustion blower
was energized. 1. The pressure switch wiring is incorrect.
2. The pressure switch tubing is not connected correctly.
3. Obstructions or restrictions in the water heater air intake or exhaust
flue.
4. Check the high temperature limit switch.
The maximum number of igni-
tion retries or recycles has
been reached and the system
is in lockout for an hour. Cycle
the power to the water heater
off and on to reset. 1. Ensure the igniter is positioned correctly.
2. Ensure the voltage to the water heater is 115-125 VAC.
3. Clear any obstructions or restrictions in the water heater air intake
or exhaust flue.
The self diagnostic test has
detected an error in the hot-
surface igniter circuit. 1. Check that all wiring is correct and secure.
2. Disconnect the igniter connector and measure the igniter resistance
with an accurate ohmmeter between pins 1 and 2. Resistance
should be between 11.5 and 18.8 ohms. If the reading is incorrect,
replace the hot-surface igniter.
3. If the above checks are good, replace the control.