Wood Stone FIRE DECK 6045, Руководство по обслуживанию

Страница: 13 / 44

Fire Deck
Service Manual
PG
13
OF 44
M0011.09 APRIL 2019
An ongoing program of product improvement may
require us to change specifications without notice.
WOOD STONE CORPORATION
1801 W. Bakerview Rd.
Bellingham, WA 98226 USA
TOLL FREE
800.988.8103
TEL
360.650.1111
FAX
360.650.1166
E-MAIL
info@woodstone-corp.com
woodstone-corp.com
CONTROLLER TROUBLESHOOTING
All versions of this Controller use a touch-pad (overlay) on the face of the control to operate the unit. It has power and
flame indicator lights and a hearth temperature display. IR equipped ovens will also have a Hearth Set Point display.
Symptom Probable Cause/Solution
Temperature display reads
“open” Indicates an open Thermocouple. Check for loose Thermocouple connections at the
Control Board and at the J-box on the Transformer Plate below the oven before replacing�
Check for continuity between the 2 Thermocouple wires� There should be NO continuity to
ground through either Thermocouple lead�
Thermocouple is shorting to ground. There should be no continuity between the
Thermocouple leads and ground� Check Thermocouple connections at control board and
J-box below the oven� Remove Thermocouple leads at J-box and retest to confirm damaged
Thermocouple and not bad wire in the Control Harness�
Oven does not turn on,
Controller is blank
Is the breaker and/or wall switch supplying power to the oven on?
Check for loose
incoming power connections at the junction box on the side of the oven�
Is the circuit breaker on the 24 V transformer tripped?
The transformer is located in the left junction box located on the Transformer Plate, beneath
the oven, at the rear� If the breaker on the transformer is tripped, eliminate the short
and reset the breaker� In addition to a bad Gas Valve, wiring etc�, a Thermocouple that is
grounding out can also cause the breaker to trip�
Check for 24 VAC between the pink and the white wires at the terminal block on the
oven control board inside the Control Box.
If 24 VAC is present, make sure that the four
nuts attaching the circuit board to the face of the box are tight�
DO NOT OVERTIGHTEN
; they
should be snug enough that pressure on the touch pad activates the switches on the circuit
board�
If the Controller is still not coming on , carefully remove all wires except the pink and
white from the circuit board terminal block� If the Controller comes on, it is OK but there is a
defective component or damaged and/or incorrect wiring elsewhere� If with just the pink and
white wires connected (and 24 VAC present), the Controller still does not come on, replace
the Controller circuit board� Turn off the incoming power to the oven before removing the
wires to prevent damage to the board�
Temperature display scrambles
and/or is erratic (may precede
the transformer circuit breaker
tripping)� Display is fine,
but the transformer circuit
breaker trips instantly and/or
intermittently�