No signal response on TCD and FID

Recently, we connected the column (CP7429) to TCD and FID using a Y splitter. However, there is no signal response on both TCD and FID after manually injection of the calibration gas (containing H2, CO, CH4, C2H4, C2H6 in CO2). The carrier gas is Ar. Only a tiny peak for CO2 can be observed on TCD and FID. 

What considerations should I take into account to solve this problem?

Thanks.

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