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Troubleshooting
Troubleshooting
Use the following troubleshooting table to assist in troubleshooting the MP50:
Display not showing
Symptom
Low or dead batteries
Batteries installed wrong
Check battery voltage on
opening display (>3.6 volts
required)
Replace batteries
Check battery connection
Controller not cycling Low or dead batteries See, above
MP50 not STARTED with
CYCLE key
MP50 in HELD mode
Operate CYCLE and/or
PAUSE key to return MP50
to cycling state
MP50 in LEVEL hold Make sure MP30 probe is
submerged when in MP
mode
Temperature below 10º F Warm controller
Air not cycling through
controller
Throttle turned too low Turn throttle clock-wise to
produce pressure
Air source not delivering air Verify air source
Pump not pumping Throttle turned too low Turn throttle clock-wise to
produce pressure
Time settings not correct Try different CPM settings
(lower CPM for deeper
wells) and/or different refill
and discharge time settings
Air source pressure too low Verify air source pressure
Battery life too short Controller left on while strored Turn MP50 off before
storing and remove
batteries when storing
more
than 1 month
Temperature below 10º F Warm controller
Possible Cause Action / Fix
Lid not open Open lid
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