Fault Indicators - Hartridge CRi-PC Operating And Servicing Manual

CRi-PC Operating and Servicing Manual
5.4.3

Fault indicators

In the event of one of the interlock indicators on the Status screen showing a
checks in table 5.2.
Interlock

Emergency Stop Active

Main Tank Level Low

Main Tank Thermostat

Air Pressure Low

Clean Tank Level Low
104
THIS IS AN UNCONTROLLED DOCUMENT downloaded by Lukas Matuska on 16 Feb 2016
Any technical intervention requires certified Hartridge training. Contact Hartridge Ltd for details.
Action
Check that the emergency stop button has not been
pressed.

Check the test fluid level through the aperture in
the left side panel, if the fluid is not visible or is
low in the window top up the level as required.
If the level appears to be ok suspect a faulty or
obstructed float switch in the main tank.

Check for evidence of leaks on the floor under /
around the test stand and determine the source.
Check the indicated supply temperature on the main
screen.

If the indicated temperature is lower than the
setpoint (normally 40°C) suspect that the flow of
fluid from the main tank into the clean tank is
insufficient – check the integrity of the fluid
circulation system as for a 'Clean Tank Level
Low' fault.

If the indicated temperature is much higher than
the setpoint check that cooling water is switched
on and entering the test stand (maximum
temperature 20°C) and that warmer water is
exiting the test stand. If the cooling water
solenoid works but the water is not flowing
though the test stand, suspect a contaminated /
stuck solenoid valve or water supply pressure
problem.

If the main tank does not feel hot remove the
front lower access panel and check that the two
wires (red and grey) on the thermostat are still in
place (the thermostat can be seen attached to
the outer surface of the main tank).

If the status indicator for the 'Cooler Circulation
On' is on and the cooling water circuit seems to
function correctly suspect a problem with the
heater control solid state relay (K2) on the
electrical chassis.
Indicates that the air supply pressure is too low or that
the air is not connected.

Check that the air supply to the test stand is
connected, switched on and is at least 6.5 bar.

Check that the air shut off valve (Figure 2.8 item
1) is open and that air pressure is shown on the
pressure gauge.
Indicates that the clean fluid supply to the CR pump has
failed (low level).

Check that the fluid circulation pump is
HARTRIDGE LIMITED

follow the
HL037 (EN), Issue 13, AT714, 05/14