Diagnostic messages – Balboa Water Group MLM990H User Guide User Manual
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Heater Dry
Inadequate water detected in heater.
(Displays on third occurrence of the
above message.) Spa is shut down.
1
Temperature unknown.
Temperature not current in Economy or
Sleep mode.
pH Low
pH is low.
pH High
pH is high.
Sanitizer Low
Sanitizer is low.
Sanitizer High
Sanitizer is high.
RTC Failure
Hardware failure.
Persistent
Memory Fail
Hardware failure.
Checksum Failure Firmware install problem.
System configured
incorrectly. Menu
panel displays errors:
GFCI Failure
Spa could not trip GFCI.
Stuck
A pump appears to be stuck on, causing
the water temperature to creep up,
possibly to hazardous levels.
A pump appears to have been stuck on
the last time spa was powered.
Follow action required for the above message. Spa will not
automatically reset; you may use a Fast Key.
After the pump has been running for 1 minute, the temperature will
be displayed.
In Economy or Sleep mode, the pump may be off for hours outside
a filter. If you wish to see the current spa temperature, either
switch to Standard mode or turn Jets 1 on for at least 1 minute.
Add pH increaser according to manufacturer’s instructions.
Add pH reducer according to manufacturer’s instructions.
Add sanitizer according to manufacturer’s instructions.
Remove spa cover and allow sanitizer to dissipate.
Contact your dealer or service organization.
Contact your dealer or service organization if message appears on
more than one power up.
Contact your dealer or service organization if message appears on
more than one power up.
Contact your dealer or service organization
Contact your dealer or service organization. Continued operation
may be unsafe.
POWER DOWN SPA IMMEDIATELY. DO NOT ENTER THE WATER.
Contact your dealer or service organization
POWER DOWN SPA IMMEDIATELY. DO NOT ENTER THE WATER.
Contact your dealer or service organization.
1 On some systems even when spa is shut down, some equipment may occasionally turn on to continue monitoring temperature
or if freeze protection is needed.
Configuration
Error
HOT -
Call Service
---°F or ---°C
---°F or ---°C
Configuration Error
Check Config. Settings
P 2.2
PS.1
---
P 3.2
P 4.1
bL.1
---
---
P6.1
Diagnostic Messages
MESSAGE MEANING
ACTION REQUIRED