Groen Vortex VRC-3E, Руководство по обслуживанию, Страница: 18 / 61

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TROUBLESHOOTING
Momentarily rotate drain handle
to reset
Press on\off switch to on
Add water to cover low water
(bottom) probe. Close door
Open door, add water to cover
top probe.
Reset light goes out
24vac led (light) on control board
illuminates
H20 light goes out
Unit beeps 3 times when water
reaches top probe
Reset switch adjustment
Reset switch
Latching relay
Incorrect wiring
Breaker on 24 Volt transformer
24 volt transformer T1
Overtemp shutdown control K1
Control board
Incorrect wiring
Low water probe
Temperature probe
Water level board
Incorrect wiring
High water probe
Control board
Incorrect wiring
Standard test
Measure from 1 to 4.
Normally open. Press switch
closed, measure continuity.
Measure from 1 to ground
while rotating reset handle.
If 12vdc and relay does not ener-
gize, relay is bad.
Check per wiring diagram
Reset breaker
Measure 208 or 240vac in and
24vac +/- 20% out
Measure across K1coil terminals
0 to 1. If 12vdc and relay does
not energize, K1 is bad
Substitute to test
Check per wiring diagram
Probe measures open to ground
without water. Short probe wire
to ground to simulate water.
About 550 ohms at room
temperature. 500 +\- 2 ohms
in ice bath.
Red light indicates power to
board. Bypass to test. Disconnect
wire to L1, move wire from NO-2
to NC-2, remove wire from H and
NO-1 and jumper these two
wires together.
Check per wiring diagram
Probe measures open to ground
without water. Short probe wire
to ground simulate water.
Substitute to test
Check per wiring diagram
SETUP EXPECTED RESULTS PROBABLE DEFECT TEST or COMMENTS