COINWASH T3300S, Service Manual

Page: 27 / 99

487 0329 21
12.7
12. Error codes
12
Service
manual
E 02 - Outlet air - Output temperature is too high
4. Defective
NTC interface
on main circuit
board.
Disconnect NTC sensor at
its terminal-block
connection to dryer wiring
harness and mesure the
resistance on the NTC
sensor
Is the resistance between
100 k
Ω and 120 k Ω at
20°C (68°F)?
Replace NTC sensor.
(Section 27)
Go to step 3.
NO
YES
YES
Replace the main
circuit board.
(Section 21)
Error description
The output temperature exceeds 85°C (185°F) for more than 30 sec.
The air thermistor is a "negative temperature coefficient" ( "NTC") sensor. As a result of
this the resistance decreases as its temperature increases.
The dryer stop operating.
Error analysis
See section 27
2. Defective
NTC sensor?
Disconnect NTC sensor at
its terminal-block
connection to dryer wiring
harness.
Replace
harness
Go to
step 4.
NO
YES
Measure resistance
between P18-3 and
P18-4 on main circuit
board. Is the circuit
open (infinite
resistance)?
3. Defective
NTC harness
Are there any errors
according to the list?
1. Missing
air flow.
See check list
on page 12.26
Correct the error from
the check list.
YES
NO
Go to step 2.