Fri-Jado CLASSIC DECK HOT MERCHANDISER, Руководство по обслуживанию

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TROUBLESHOOTING
Page 24
Service Manual Multi Deck 60/100/120 / Classic Deck form 9123661 rev. 10/2015
Description of part Symptoms Possible causes Solving: checking / action
Relay K1 (Finder relay in
older models) Relay does not come in. Wiring Check the wiring
Coil malfunction Check resistance of coil. This
should be ± 7.0KΩ
Contact burned Check the contacts
Contactor K1 Contactor does not come in. Wiring Check the wiring
Coil malfunction Check resistance of the coil.
This should be ± 525Ω
No tension on one or more
phases Bad contact Check the contacts
Heating element The cabinet is not reaching
the adjusted temperature Wiring Check the wiring
Check the power on the
element
Element malfunction Check the current with AC
current tester. See table on
page 15
Tumble switch Light or heating does not
switch on Wiring Check the wiring
Contact burned Check the voltage on “in”-
and “output”.
Electronic ballast Light does not switch on Wiring Check the wiring
Ballast malfunction Replace ballast
PL lamp(s) Light does not switch on Wiring Check the wiring
Lamp(s) broken Replace lamp(s)
Security thermostat The cabinet is not reaching
the adjusted temperature Wiring Check the wiring
Security thermostat switched
off Reset thermostat
Security thermostat malfunc-
tion Replace thermostat
Electronic thermostat Display does not light up Wiring Check the wiring
The cabinet is not reaching
the adjusted temperature or
does not heat up at all Loose sensor Check sensor
Thermostat malfunction Replace thermostat
PTC 1000 sensor The cabinet is not reaching
the adjusted temperature or
does not heat up at all Broken sensor Replace sensor
Loose sensor Check wiring
The cabinet becomes too
hot Broken sensor Replace sensor
Sensor shorted Check wiring
Blower(s) on heaters Security thermostat swit-
ched off Wiring Check wiring
Check voltage on blower
Blower malfunction Check for blockage
Replace blower
Blower(s) air curtain The cabinet is not reaching
the adjusted temperature Wiring Check wiring
Check the voltage on blower
Blower malfunction Check for blockage
Replace blower
This is an analytic description for servicing and repairing all major parts of the Multi Deck 60, 100 and
120 Hot and Classic Deck Hot. It consists of 4 basic steps to recognize and solve the problems:
1. Symptoms.
2. Possible causes.
3. Solving of the problem: checking/action.
4. Replacing of parts and testing: a. Replacing is described in this service manual.
b. For testing see control locations on page 17 of this manual.