Quest Engineering MPS 3 - Page 28

MPS 3 and MPS 3 ND Troubleshooting Manual – Troubleshooting
54
Air detected in delivery line
IGNORE CONFIRM
When IGNORE is selected:
Next Air detection will not stop flow
Select Confirm only if you agree
CONFIRM CANCEL
* Check delivery line to ensure
it
is fully inserted in sensor
* If sensor is ignored, manually
inspect delivery line for air
moving forward
55
Air detected in delivery line. Flow
continues
Manually check for air
CONFIRM
* Check delivery line to ensure
it
is fully inserted in sensor
* If sensor is ignored, manually
inspect delivery line for air
moving forward
56
More Air detected in delivery line.
Continue to Flush
CONFIRM
* Check delivery line to ensure
it
is fully inserted in sensor
* If sensor is ignored, manually
inspect delivery line for air
moving forward
57
Vent Valve is Open
Check for Air in the bubble trap
Ensure the heat exchanger is locked
CONFIRM
* Check heat exchanger to
ensure it is tightly secured
with
the locking knob
* Check vent line for clamps,
kinks, or occlusions
* Attempt to manually actuate
valve several times
* Restart System
* Contact service after multiple
occurrences
58
Low pressure in heat exchanger
Check circuit
CONFIRM
* Check heat exchanger to
ensure it is tightly secured
with
the locking knob
* Check vent and delivery lines
to
ensure they are properly
inserted in delivery and vent
valves
Alar
m
Cod
e
Message Display
Corrective Action
12