Discharge Temperature [˚C] - Daikin VRV IV+ Service Manual

2.3.35 F3-01-03-05 – Compressor discharge temperature too high
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
6 Check if the refrigerant circuit is correctly charged. See
4
circuit" [ 363].
Possible cause: Refrigerant overcharge.
7 Check if the power supply is conform with the regulations. See
4
circuit" [ 356].
Possible cause:
▪ Faulty or disturbance of the power supply (imbalance >10%),
▪ Power drop,
▪ Short circuit.
8 Perform a power reset. If the error disappears and is raised again after a
while, check for the presence of an external source causing electrical noise.
See "4.3 External factors" [
Possible cause: External source may cause interference.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Main error code
F3
INFORMATION
Main, Sub 1 and Sub 2 indications are relevant in multiple outdoor unit
configurations. Main outdoor unit is the unit to which F1‑F2 IN transmission line is
connected. Main, Sub 1 and Sub 2 outdoor units can be identified by field setting
1‑00.
Trigger
Discharge temperature
>safety value certain
times within certain
minutes, see "6.6 Safety
4
devices" [ 449].
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Check that all stop valves of the refrigerant circuit are open. See
"4.2 Refrigerant circuit" [
Possible cause: Closed stop valve in the refrigerant circuit.
4
372].
Sub error code
01
03
05
Effect
Unit will stop operating.
4
363].
2 Troubleshooting
|
"4.2 Refrigerant
"4.1 Electrical
Unit
Main
Sub 1
Sub 2
Reset
Manual reset via user
interface.
Automatic reset when
discharge temperature
<reset value, see
"6.6 Safety
4
devices" [ 449].
Service manual
57