Master Spas TS 240, Owner'S Manual

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70 DO NOT DIVE.
Spa Controls
Heater-Related Messages
THE WATER FLOW IS LOW – M016**
There may not be enough water flow through the heater to carry the heat away from the heating
element. Heater start up will begin again after about 1 min. See “Flow Related Checks” below.
THE WATER FLOW HAS FAILED* – M017**
There is not enough water flow through the heater to carry the heat away from the heating
element and the heater has been disabled. See “Flow Related Checks” below. After the problem
has been resolved, reset the message*.
THE HEATER MAY BE DRY* – M028**
Possible dry heater, or not enough water in the heater to start it. The spa is shut down for 15 min.
Reset this message* to reset the heater start-up. See “Flow Related Checks” below.
THE HEATER IS DRY* – M027**
There is not enough water in the heater to start it. The spa is shut down. After the problem has
been resolved, you must reset the message* to restart heater start up. See “Flow Related Checks”
below.
FLOW-RELATED CHECKS
Check for low water level, clean or replace filters, check for suction flow restrictions, closed valves,
trapped air, too many closed jets and pump prime.
On some systems, even when spa is shut down by an error condition; some equipment may
occasionally turn on to continue monitoring temperature or if freeze protection is needed.
* Some messages can be reset from the panel. Messages that can be reset will appear with a Clear
Icon at the bottom of the Message Screen. Press the Clear Icon text to reset the message.
**M0XX is a Message Code. Codes like this will be seen in the Fault Log
THE HEATER IS TOO HOT* – M030**
One of the water temp sensors has detected
118°f (47.8°C) in the heater and the spa is
shut down. You must reset the message* when
water is below 108°f (42.2°C). See “Flow
Related Checks” below.