Cecilware CME10E-N, Руководство оператора

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8 Cecilware
®
Water Boilers
Maintenance (continued)
Component Tests
Water Inlet Valve Test
1. Turn power OFF. If the water level rises inside a
partially filled tank, the Water Inlet Valve is leaking.
2. Disconnect wires from the Water Inlet Valve coil and
connect a 2 wire line cord to the terminals. Plug it
into a 120V outlet. If water flows in and stops when
you pull it out, the Valve is working fine. Repeat this
test a few times. The problem may be in the Probe
or Water Level Control Board.
3. If the water does not flow in when the cord is
plugged into an electrical outlet, the Solenoid coil
may be damaged, opened, or the valve may have
an obstruction preventing the water from flowing in.
Clean or replace it.
Dual Probe Test
If lack of water persists, check the probe as follows:
1. Turn on the power and water supply. Check inside
the tank to make sure the water is below the Probe.
Pull the BLUE wire and terminal OFF the Probe rod.
2. If water still does not flow after the wire is
disconnected from the Probe, the problem may be
in the Solid State Dual Level Control Board.
3. If water starts flowing into the tank, the Probe may
be grounded, due to excessive liming. Check with
Ohm meter.
4. Clean or replace probe.
Dual Probe Liquid Level Controller Test
Check the Controller as follows:
1. Make sure there is power input to the Controller at
the terminals AC1 & AC2. Your voltmeter should
read 115 Volts. It should read the same at terminals
AC1 & FILL when the water level is low. This is the
output power to actuate the coil of the Solenoid
Valve to open it.
2. The lack of voltage at terminals AC1 & L-LEVEL or
H-LEVEL indicates that the Controller is not working
properly.
3. Make sure all wire connections are tight, including
ground.
4. If after this, the Controller is still failing to open the
Water Inlet Valve, replace it.
Hose Nut Assembly
Blue
WARNING: SHOCK AND BURN HAZARD
To prevent electric shock and burn hazard all tasks
described in this section are to be performed by a
trained and qualified service technician.
WARNING: SHOCK HAZARD
Disconnect power before attempting any electrical
repairs.