Maytag Amana PMH Series Service And Troubleshooting page 37

Package terminal air conditioner/heatpump
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SERVICING
Fb
Low Battery
FC
DST Sensor bad
Front Desk
Fd
FH
DDT Sensor bad
Fh
OD %RH Sensor bad
Fo
OAT on ID RH Sensor bad Temp thermistor on outdoor humidity sensor bad
FP
Room Freeze Protection Room < (Jb)
Fr
ID %RH Sensor bad
H1
High Voltage
H2
Hot compressor discharge
H4
Hot compressor discharge IHD>230-(JP)
HA
DigiAir discharge hot
Hc
Hyd coil freeze protection IHD<35 & (JJ)=28
HF
Hyd heat deficiency
HP
Room Heat Protection
L
Binding
Frosting indoor coil
L3
Too hot indoor coil in HP ICT > (J1)
L4
Load Shedding
L5
Electric discharge too hot IDT > 100+(J2)
L6
L7
DigiAir refrigeration issue
OD Coil Hot Lockout
LC
OD Coil Frosted Lockout
LE
OD Coil Frost Lockout
LF
nA
Antenna Issue
oP
Open door lockout
Programing
Pr
rC
Wireless Twinned Control (C3) & (C4) same, (r5) ≥11 & ≤19 but different, EC1
Ur
Unrented Room
flashing service LED
Batter Volt < 2.2V in any wireless device
DST < -20, or > 200, or open, or shorted
Front desk switch is closed on IN1 or IN2
DDT < -40, or > 257, or open, or shorted
Outdoor humidity sensor bad
Indoor humidity sensor bad
Transformer secondary > 32.5 Vac
IHD>210-(JP)
DDT>250
IHD<100 & (JJ)=28
Room > (u3)
Off button has been held down to initiate binding process Complete binding & press Off; self ending in 45 sec.
< 30
ICT
15
Load shedding switch is closed on IN1 or IN2
DDT-DST>200 or <80
OCT > 160
OCT
<27
0
OCT
<20; OCT
<27
1-9
10
Antenna Cable loose or broken (may show while Binding) Replace antenna cable; replace antenna
Door switch is closed on IN1 or IN2 or wireless
Software on daughter board being upgraded
Property has set unit to unrented state
Corrupted software
Status
Status affecting Operation
Error not affecting Operation
Error affecting Operation
Error Shutdown Functionality
Code disabled by (d5) config
Replace Batteries
Normal Op. w/o DigiAir Module; replace if needed
Normal, open switch, check switch, check (u8) & (u9
Normal Op. w/o DigiAir Module; replace if needed
Replace RH Sensor
Replace RH Sensor
Normal Op. in low temp room; self correcting
Replace RH Sensor
Check receptacle voltage & transformer tap
Condenser blockage; restriction
Condenser blockage; restriction
Check kit filter, & kit for air blockage
Water or steam value opens automatically to warm c
Blower engages only when hydronics is warm
Normal Op. in high temp room; self correcting
Normal Op. in low temp; leak or restriction otherwise
Condenser blockage; restriction
Normal, open switch, check switch, check (u8) & (u9
Condenser blockage; restriction
Check kit filter, & kit for air blockage
Clean Cond., Check Fan
Normal Op. in Low Temp
Normal Op. in Low Temp
Normal, close door, check switch, check (u8) & (u9)
Wait to self clear
Normal
Front Desk to set to Rented mode if applicable
Re-flash software with tool
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37

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