Bryant LEGACY 213R Service Manual download pdf (Page 15)

Table 3—TechAssistt Diagnostics--at-- a --Glance

LED

Description ON OFF

Y Thermostat cooling call Yes No......... ........ ......

HPS High Pressure Switch Closed Open....... ......... ...

LPS Low Pressure Switch Closed Open....... .......... ...

230V AC Line Power Available Yes No...... ...... ......

Contactor Contactor Energized Yes No.. .......... ......

Compressor Compressor Running Yes No. .......... ......

CONTROL

POWER

Contactor Compressor230V

YHPS

LPS

Note: Follow arrows to first unlit LED in control (green) ladder or power (amber) ladder to determine problem area.

F o r contactor LED to be On, all control LEDs (green) as well as 230V LED (amber) must already be on, and contactor must operate

properly

Control Ladder

Power ladder

Indication

Possible Cause & Quick

Trouble---Shooting

Green LEDs Amber LEDs

Y HPS LPS 230V

Contac-

tor

Compressor

Off Off Off Off Off Off

--- No 230V power to unit

--- N o t h e r m o s t a t c a l l

--- Check 230V disconnect/ circuit breaker

--- Check 230V L1 & L2 wire connections

On Off Off --- --- Off Off --- H P S S w i t c h O p e n

--- Check pressures

--- Check HPS wire connections

On On Off --- --- Off Off --- L P S S w i t c h O p e n

--- Check pressures

--- Check LPS wire connections

On On On Off Off Off --- No 230V power to unit

--- Check 230V disconnect / circuit breaker

--- Check 230V L1 & L2 wire connections

On On On On Off Off --- C o n t a c t o r o p e n * * *

--- Check Contactor and replace if necessary

--- Check contactor wire connections

On On On On On Off --- Compressor not running*

--- Check for compressor protector trip, capacitor

fault, faulty connections or compressor fault.

SEE BELOW.

On On On On On On --- Compressor running --- O K

Off Off Off On Off Off --- No thermostat call, standby --- O K

Off Off Off On On Off

--- Contactor stuck closed,

compressor tripped

--- Check Contactor and replace if necessary

--- Check wire connections for shorts

Off Off Off On On On

--- Contactor stuck closed,

compressor running

--- Check Contactor and replace if necessary

--- Check wire connections for shorts

*Compressor not running: If all LEDs are on except the Compressor, this indicates that power is applied to the compressor but it is not running. Check the

following sequence:

1) Check all compressor wire connections

2) Check run capacitor and replace if necessary

3) Try starting compressor

4) If compressor LED does not come on, then leave unit in standby for up to four hours to allow thermal protector to reset, and all pressures to equalize

5) Try starting the compressor again

6) If compressor LED comes on, then turns off quickly, investigate starting issues such as low line voltage

7) If compressor LED never comes on, compressor may be faulty.

Fig. 8 – Tech Assist Ladder Diagram

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 65 66

Comments to this Manuals

No comments

Bryant LEGACY 213R Service Manual Page 15

Comments to this Manuals

Related products and manuals for Heat pumps Bryant LEGACY 213R