Bryant 355BAV Service And Maintenance Instructions

16
Is AMBER LED status light blinking ON/OFF slowly with a combination of short and long flashes?
Is AMBER LED status light blinking rapidly without a pause?
Is AMBER LED status light on?
Determine status code. The status code is a 2 digit number with the first digit determined by the number of short flashes and the second digit by the number of long flashes?
Go to section below for the status code that was flashed.
YES
NO
YES
To recall previous status codes disconnect the R thermostat connection, reset power, and put setup switch SW1-1 in the ON position. The AMBER LED will flash the status codes in the order of occurrence. Record status codes until status code #11 flashes (1 short and 1 long flash). After status code #11 flashes the status codes will repeat. Status codes are erased after 72 hours or can be manually erased by putting setup switch SW1-1 in the ON position and jumpering R, W/W1, and Y/Y2 simultaneously until status code #11 is flashed. When done put setup switch SW1-1 in the OFF position.
Check for correct line voltage polarity. If units are twinned, check for proper low-voltage (24V) transformer phasing.
Was there a previous status code other than #11?
Is door switch closed? Is there 115V going to switch?
Replace door switch.
Replace transformer.
Does the control respond to W/W1, W2, Y1, Y/Y2, and G (24V) thermostat signals? Replace furnace control.
NO
NO
NO
NO
Is 24V present at W/W1, W2, Y1, Y/Y2 or G thermostat terminals on the furnace control?
NO
YES
YES
Replace furnace control.
Is there 24V at SEC-1 and SEC-2?
Is there 115V at L1 and L2?
YES
NO
YES
YES
NO
YES
NO
YES
Run system through a low-heat, high-heat, or cooling cycle to check operation. Status codes are erased after 72 hours or can be manually erased by putting setup switch SW1-1 in the ON position and jumpering R, W/W1, and Y/Y2 simultaneously until status code #11 is flashed.
YES
NO
Close circuit breaker and go back to START.
Check for continuity in wire from circuit breaker to furnace.
Is circuit breaker closed? Close door switch. Check room thermostat or interconnecting cable.
NO
YES
YES
NO
The thermostat is not compatible with the furnace control. Either install a ballast resistor, connect the Com24V thermostat terminal to the thermostat, or replace the thermostat.
Does the problem repeat when using a jumper wire?
Disconnect all the ther furnace control.
START
TROUBLE SHOOTING GUIDE - VARIABLE SPEED
A02350a
355BAV

Bryant 355BAV Specifications

General

Brand	Bryant
Model	355BAV
Category	Furnace
Language	English