TREVIL 5040 EASYFORM, Инструкция по эксплуатации и обслуживанию, Страница: 17 / 40

50xx Easyform-ed0811
¥
50xx EASYFORM 17 Troubleshooting
7.2. Solution to failures, for the use of the authorised service center
WARNING - This chapter is for the exclusive use of an authorised technician. For maintenance and replacement of compo-
nents always refer to a service center.
Table 7.2 - Solution to failures
Symptom Components likely to
be involved Possible cause Controls to be carried out
The programming panel
cannot be activated /
The programming panel
switches on but the machi-
ne doesn’t start The control card has failed Replace the card
No steam from machine The solenoid valve has failed Replace the solenoid valve
Fan does not function Protection tripped Reset protection
The electromagnetic switch has failed Replace the electromagnetic switch
Motor burnt out Replace the motor
Inadequate ventilation Fan blades has failed Check and replace
Fan is dirty Clean fan
Water leakage during
steam operation Steam trap failed or dirty (Models 5040, 5042) Replace or clean the steam trap
High water level (Models
5050, 5055, 5052,
5057) The electic circuit between board and
probes is faulty Clean the probes
The control board has failed (Models 5050, 5055, 5052, 5057) Replace the card
The pump works, water
gets into the boiler but
overflows fron the safety
valve exhaust. (Models
5050, 5055, 5052, 5057) The level control board
does not receive the
signal that the level has
been reached The electic circuit between board and
probes is faulty Check connections and wires
The control board has failed Replace the board
The pump works but water
does not reach the boiler.
After 4 minutes the unit
turns into protection mode
(Models 5050, 5055,
5052, 5057) There is no water or the
water flow is too low Problems of the water line (no
service, closed valves, interruptions
or leaks, ...) Verify that water reaches the unit in proper
quantity.
Filters or connections are dirty Clean water intake connections and filters as
per instructions in table 6.1
The pump solenoid valve has failed Replace the solenoid valve
The pump is always on,
the heating elements are
on (Models 5050, 5055,
5052, 5057) The pump does not re-
ceive the signal to stop The level control board of the boiler
has failed Replace the board
The pump does not work
(Models 5050, 5055,
5052, 5057) The pump does not re-
ceive the signal to start Electric circuit between control board
and pump is interrrupdes Check connections and wires
The level control board of the boiler
has failed Replace the board
The pump has failed Replace the pump
There is water in the boiler
but heating elements do
not turn on (Models 5050,
5055, 5052, 5057) The heating elements do
not receive the signal to
heat Pressure switch or relative circuit have
failed Check the circuit and/or replace the pressure
switch
Safety thermostat or relative circuit
have failed Check the circuit and/or replace the safety
thermostat
The level control board of the boiler
has failed Replace the board
The coil of the contactor has failed Replace the contactor
The circuit that drives the heating
elements has failed Check the electric connections of the contactor
coils
No electricity to the heat-
ing elements The electric circuit that carries
electricity to the heating elements is
interrupted Check that the fuses are intact
Faulty element Replace the element
Faulty contactor Replace the contactor
The sleeve arms do not
move (Models 5042, 5052,
5057) The solenoid valve has failed Replace the solenoid valve