Armstrong International B3038 Electrode Assembly R-410A Field technicians prefer the 222CB

Field technicians prefer the 222CB series for its simplified maintenance

Contractors rely on the H43AB-4 for its mechanical simplicity and 3/8" NPT gas valve standard threading

Measuring 12 inches wide by 10 inches high

Technicians should first verify 24VAC control power at the transformer and check for visible signs of damage like burnt traces or failed solder joints

preventing the "sticking" issues common in high-mineral or glycol-treated loops

Armstrong International B3038 Electrode Assembly R-410A Field technicians prefer the 222CBThe Armstrong International B3038 Electrode Assembly is a high performance replacement component engineered for precise water level sensing and flame monitoring. Designed specifically for use with Armstrong Electronic Humidifiers models EHU 701 and EHU 801, this 1Ph Hi Lo Volt electrode ensures consistent conductivity across both high and low voltage environments. As an authentic OEM Armstrong B3038 part, it provides the exact fit and technical