To Next PageTo Next PageWhat does it mean if LED2 is blinking on my Mitsubishi Electric Controller FTC (Main)?
If the LED2 on the FTC (Main) is blinking, and LED1 is also blinking, it indicates faulty wiring between the FTC (Main) and the outdoor unit. Check for faulty wiring between the FTC (Main) and the outdoor unit.
Why is my Mitsubishi Electric PAC-SIF051B-E leaking water?
If water is leaking, it could be due to poorly sealed connections of water circuit components or water circuit components reaching the end of their life. Tighten connections as required.
What does it mean when LED4 is blinking on my Mitsubishi Electric Controller?
If the LED4 on the FTC (Main) is blinking, it indicates a problem with the SD memory card. The card may be full of data, write-protected, not formatted, or formatted in the NTFS file system. Move or delete data, or replace the SD memory card with a new one. Release the write-protect switch. Use an SD memory card formatted in FAT file system, as the FTC is not compatible with NTFS.
Why has the water temperature in my Mitsubishi Electric Controller DHW tank dropped?
If the temperature of the DHW tank water has dropped, it could be due to water leakage in the pipes connecting to the DHW tank, loose or missing insulation, or a 3-way valve failure. Retighten the nuts holding the pipes onto the DHW tank, replace seal materials, or replace the pipes. Fix any loose insulation. Check the plumbing/wiring to the 3-way valve. Manually override 3-way valve using the main remote controller. Replace 3-way valve coil. Replace 3-way valve.
Why is my Mitsubishi Electric Controller heating system not reaching the set temperature?
If the heating system isn't reaching the set temperature, several factors could be at play. Check if 'Prohibit', a schedule timer, or holiday mode is active, and adjust settings accordingly. Ensure the temperature sensor is in a representative location. The heat pump may not be working. The booster heater cut-out may have tripped. The booster heater breaker (ECB1) may have tripped. The booster heater thermal cut-out may have tripped and cannot be reset using the manual reset button. The heat emitter may be incorrectly sized. There may be a 3-way valve failure. There may be a battery problem (*wireless control only). If a mixing tank is installed, the flow rate between the mixing tank and the heat exchanger may be less than that between the mixing tank and the local system.
General| Brand | Mitsubishi Electric |
|---|---|
| Model | PAC-SIF051B-E |
| Category | Controller |
| Language | English |
