Ml551 user guide el/gl series - mach 3 yxcyfx$`ejkild\ekj%zfd electronic spa controls electronic spa controls standard 7 digital system jets 1 jets 2 light jets 3 / blower mode warm cool heat electronic spa controls electronic spa controls standard 7 digital system jets 1 jets 2 light jets 3 / blowe...
El/gl series (mach 3) control with ml551 panel the ml551 panel can be used with the el8000, el5000, el2000 and el1000 systems. This user guide lists all features that are available. Your spa may not respond as described in this document as specific operation varies by system and equipment used. If y...
Temp set (80°f - 104°f / 26.0°c - 40.0°c) the last measured temperature is constantly displayed on the lcd. Your spa’s set temperature range may vary from range shown above depending on your manufacturer’s settings. Note that the last measured spa temperature displayed is current only when the pump ...
Preset filter cycles on all systems, the pump and the ozone generator will run during filtration. At the start of each filter cycle, the blower will run briefly on its highest speed to purge the air channels. The lowest speed of any other pumps and the mister will also run briefly. On some circ syst...
Displaying information about your spa there are several pieces of information about your spa that can be called up from the panel, but are only needed in special cases. To access this information, press “cool” or “warm” then “jets 1”, then “light”. (each press must be within 3 seconds of the previou...
Page 5 gfci protection your spa may be equipped with a gfci protection feature. If your spa does have this feature enabled, the gfci trip test must occur to allow proper spa function. Within 1 to 7 days after startup, the spa will trip the gfci to test it. (the number of days is factory programmed.)...
Diagnostic messages message meaning no message on display. Power has been cut off to the spa. “overheat” - the spa has shut down. 1 on some systems, an alarm may sound. One of the sensors has detected 118°f (approximately 47.8°c) at the heater. “overheat” - the spa has shut down. 1 one of the sensor...
Diagnostic messages (continued) message meaning temperature unknown. Temperature not current in economy or sleep mode. Standby mode has been activated by pressing a button combination on the user panel. The spa is operating in standard mode. The spa is operating in economy mode. The spa is operating...
Page 8 periodic reminder messages (press the “mode” button to reset a displayed reminder.*) message ** frequency *** action required every 7 days test and adjust ph chemical levels per manufacturer’s instructions. Every 7 days test and adjust sanitizer chemical levels per manufacturer’s instructions...
Page 9 jets 3, jets 4 (optional on some systems) press the “jets 3” button once to turn pump 3 on or off, and to shift between low and high speeds if it is a two-speed pump. If left running, the pump will turn off after a timeout period. “jets 4” operates the same way as “jets 3”. Jets 5, jets 6 (op...
P/n 40632-99_c 04/26/2007 warning! Shock hazard! No user serviceable parts. Do not attempt service of this control system. Contact your dealer or service organization for assistance. Follow all owner’s manual power connection instructions. Installation must be performed by a licensed electrician and...
